Safety-pin.



M. L. MIRAULT.

SAFETY PIN.

APPLIOATION FILED FEB. 29, 1912.

1,077,360, Pdtented Nov. 4, 1913.

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MAURICE LOUIS MIRAULT, OF LES RIGEYS, FRANCE.

SAFETY-PIN.

Application filed February 29, 1912.

To all whom it may concern Be it known that I, MAURICE LOUIS Mr- RAULT, a citizen of the Republic of France, residing at Les Riceys, Aube, France, have invented certain new and useful Improvements in Safety-Pins, of which the following is a specification.

- In the usual safety pin the pin proper is straight and is adapted to move resiliently about the head. This arrangement has the serious disadvantage that the fiexure which it is necessary to give to the pin, after it is passed through the material, in order to bring its point into the sheath, invariably imparts to it, specially if the material is rather thick, a permanent deformation; on account of this deformation, the point finally fails to engage in the sheath and the pin is no longer a safety pin.

The main feature of the improved safety pin forming the subject of the present invention is that the operative part, instead of being straight, as in the ordinary safety pin, is curved and pivots about a point on the fixed part in such manner that the point, by this movement tends to engage in the sheath.

In the annexed drawing are shown by Way of example various embodiments of the in vention.

Figures 1, 2 and 3 show a safety pin constructed in accordance with the invention, in elevation, in end View, and in plan respectively. Figs. 4, 5 and 6 show the same pin in three positions and the material in which it is secured. Fig 7 shows another embodiment of the invention. Figs. 8 and 9 show the application of the improved safety pin to a brooch or other similar article.

The improved safety pin comprises (Figs. 1, 2 and 3) a movable part or pin proper a terminating in a curved part 7), preferably circular in form, and pivoting about a point 0 on the fixed support 2. The fixed support is preferably of U-form in transverse section, the arms of the U serving to guide the pin and the base having two openings 0 e for permitting, the passage of the curved portion 6 in its movement about the pivot 0. Figs. 4t, 5 and 6 show clearly the operation of the pin so constituted. Fig. 4 shows the pin just before it is inserted in the material. Fig. 5 shows the pin in its mid position; by holding the support d with the hand and by causing at the same time the pin to turn about its pivot by moving the extremity g,

Specification of Letters Patent.

Patented Nov. 4:, 1&13.

Serial No. 680,577.

the pin enters the material not at an inclination as in the case of ordinary safety pins but in a direction approximately at right angles thereto. On continuance of this movement the pin passes a second time through the material without deformation, and the point automatically enters the sheath, being guided in this movement by two small inclined shoulders 7 Fig. 6 shows the pin in closed position. It will be noted that in the open position, as well as in the closed position, the point is held between the two arms of the U-shaped support. The force resulting by pulling the material or the body of the pin, will pass nearly always through or through a point near the center of rotation 0; this force therefore does not tend to open the pin; in order to open it, it is necessary to exert on the extremity g, a force in the reverse direction. In the closed Position the pinis prevented from being opened accidentally by means of a flexible stop 72 formed on the interior of the member (Z by stamping and coming into position between the two folded parts of the pin when the latter is pressed into its closed position. The same arrangement may be adopted for holding the pin in open position.

Fig. 7 shows another embodiment of the invention in which the center of rotation c of the movable part is arranged externally of the axis of the support cl in such manner as to reduce the curvature'of the curved part. This offers further the advantage that the resistance to deformation is increased by the portion m adj aeent its point bearing on the edge of the opening 6.

In all these embodiments the part (Z may be ornamented by parts a which may at the same time be utilized for receiving the point.

The improved safety pin may advantageously be combined with brooches, lockets, or other similar articles. Figs. 8 and 9 show in rear view and in plan respectively a brooch 79 provided with the improved safety pin, the fixed part (Z of which is secured by arms 0 or the like soldered to the brooch; or any other suitable means may be used.

Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is 1. A safety pin comprising a sheet metal body bent to form a narrow bar having a U-shaped cross section and perforations in its bottom, and a pin mounted on a pivot between the sides of said bar and provided with an operating handle and with a curved end portion adapted to pass through said perforations, and terminating in a point, said pin having throughout its length a uniform thickness substantially equal to the width of the space between the sides of said bar, and the handle and the point of the pin when closed being received within the bar whereby the latter serves to protect said point and to guide the pin laterally throughout its movements;

2. A safety pin comprising a sheet metal of thin metal and having the form of a nari body bent to form a narrow bar having a U-shaped cross section and perforations in its bottom, and a pin composed of a single piece of wire mounted at one end-on a pivot between the sides of the bar and having at its other end a curved portion adapted to pass through said perforations, and termi- 1 nating in a point said pin being doubledbetween its ends to provide an operating handle and having throughout its length a uniform thickness substantially equal to the width of the space between the sides of the bar, and said handle and the point of the pin when closed being received within the bar, whereby the latter serves to protect said point and to guide the pin laterally throughout its movements.

3. A safety pin comprising a body made I of thin metal: and having the forin'ot' a narrow bar of U-shaped cross section, with pering portions at the sides of the perforations,

and a pin pivoted between the sides of the 7 body portion and having an operating handle and an end portion formed on a curve havlng the pivotal axis of the pm as its center, said pin having a uniform thickness substantially equal to the space between the sides of the body, and its curved portion being located in position to pass through said perforations.

4. A safety pin comprising a body made row bar with parallel sides, a pin composed of a single piece of w1re plvoted at one end between the sides of the body and having a curved portion at its other end, said pin tending inward from one of the sides of the In testimony whereof I affix signature in presence of two witnesses.

MAURICE LOUIS MIRAULT.

VVit-nesses: I

Gnonens Ro'r'rn, BARTLEY F. YosT.

Copies of this patent may 'be obtained for five cents eac'h, by addressing the Commissioner of Patents,

being doubled between its ends to form an operating handle adapted to enter between 1 the sides of the body, and a projection eX- 

